EP 0723172 A3 19960904 - Exposure control device in a camera
Title (en)
Exposure control device in a camera
Title (de)
Vorrichtung zur Belichtungssteuerung in einer Kamera
Title (fr)
Dispositif de réglage d'exposition pour caméra
Publication
Application
Priority
- EP 90309732 A 19900905
- JP 23104189 A 19890906
Abstract (en)
[origin: EP0416904A2] An exposure control device in a camera comprises focus detection means for calculating a plurality of defocus amounts corresponding to a plurality of focus detection areas, weight producing means for producing a plurality of weights corresponding to the plurality of focus detection areas on the basis of the plurality of defocus amounts, light metering means for light-metering a plurality of light metering areas at least partly overlapping with the plurality of focus detection areas and producing a plurality of light metering outputs, and exposure amount calculating means for calculating a proper exposure amount on the basis of the plurality of weights and the plurality of light metering outputs.
IPC 1-7
IPC 8 full level
G02B 7/34 (2006.01)
CPC (source: EP)
G02B 7/34 (2013.01)
Citation (search report)
- [YA] US 4339185 A 19820713 - NAKAUCHI KENJI, et al
- [YA] US 4851657 A 19890725 - TANIGUCHI NOBUYUKI [JP], et al
- [Y] JP S61279829 A 19861210 - CANON KK & US 4912495 A 19900327 - ISHIKAWA MASANORI [JP], et al
- [A] US 4774401 A 19880927 - YAMADA AKIRA [JP], et al
- [E] US 4977423 A 19901211 - YAMANO YASUTERU [JP], et al
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0416904 A2 19910313; EP 0416904 A3 19910626; EP 0416904 B1 19961120; DE 69029181 D1 19970102; DE 69029181 T2 19970522; EP 0723172 A2 19960724; EP 0723172 A3 19960904
DOCDB simple family (application)
EP 90309732 A 19900905; DE 69029181 T 19900905; EP 96101422 A 19900905